Hari Haran

Scientific Officer
Cosmic Ray Laboratory
Tata Institute of Fundamental Research

Links


About Me

ORCID iD iconhttps://orcid.org/0000-0002-4496-7163

I am working in GRAPES-3 experiment at Cosmic Ray Laboratory(CRL) in Ooty from July 2011.

Expertise

  • Programming in C & C++
  • ROOT framework by CERN (ROOT based analysis)
  • CORSIKA simulation
  • Geant4 simulation
  • Cluster designing & computing
  • Web designing (Designer of http://grapes-3.tifr.res.in)



Education

The function of education is to teach one to think intensively and to think critically. Intelligence plus character - that is the goal of true education. Martin Luther King, Jr.

M.Sc., Physics

Madurai Kamaraj University, Madurai

B.Sc., Physics

The American College, Madurai

Publications

Journals

  1. Energy sensitivity of the GRAPES-3 EAS array for primary cosmic ray protons
    B. Hariharan et al., Experimental Astronomy 50, 185–198(2020)
  2. The angular resolution of GRAPES-3 EAS array after improved timing and shower front curvature correction based on age and size
    V.B. Jhansi et al., Journal of Cosmology and Astroparticle Physics 07(2020)024
  3. Simulation of atmospheric pressure dependence on GRAPES-3 particle density
    M. Zuberi et al., Experimental Astronomy 49, 61-71(2020)
  4. Modeling of rigidity dependent CORSIKA simulations for GRAPES-3
    B. Hariharan et al., Experimental Astronomy 48, 111–120 (2019)
  5. Measurement of the electrical properties of a thundercloud through muon imaging by the GRAPES-3 experiment
    B. Hariharan et al., Phys. Rev. Lett. 122, 105101 (2019)
  6. Measurement of the radial diffusion coefficient of galactic cosmic rays near the Earth by the GRAPES-3 experiment
    H. Kojima et al., Physical Review D 98, 022004 (2018)
  7. Was the cosmic ray burst detected by the GRAPES-3 muon telescope on 22 June 2015 caused by a transient weakening of the geomagnetic field or by an interplanetary anisotropy?
    P.K. Mohanty et al., Physical Review D 97, 082001 (2018)
  8. Dependence of the muon intensity on the atmospheric temperature measured by the GRAPES-3 experiment
    K.P. Arunbabu et al., Astroparticle Physics 94 (2017) 22-28
  9. Transient Weakening of Earth’s Magnetic Shield Probed by a Cosmic Ray Burst
    P.K. Mohanty et al., Phys. Rev. Lett. 117, 171101 (2016)
  10. Fast fourier transform to measure pressure coefficient of muons in the GRAPES-3 experiment
    P.K. Mohanty et al., Astroparticle Physics 79 (2016) 23-30
  11. Solar diurnal anisotrophy measured using muons in GRAPES-3 experiment in 2006
    P.K. Mohanty et al., Pramana Journal of Physics accepted on 19 April (2013)

Conference proceedings

  1. Parametric analysis of the Lateral Distribution Function of Cherenkov light for Yakutsk EAS Array in the Energy Range 1–20 PeV
    F. Al-Zubaidi et al., International Laser Technology and Optics Symposium 2019, J. Phys. Conf. Ser. 1484 012023
  2. Measurement of the electrical properties of a thundercloud through muon imaging by the GRAPES-3 experiment
    B. Hariharan et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)185
  3. Dependence of hadronic interaction models in atmospheric electric field simulations for GRAPES-3
    B. Hariharan et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)186
  4. Non-linearity correction of PMT response on the observed particle densities in GRAPES-3
    A. Chandra et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)216
  5. Observation of cosmic ray anisotropy with GRAPES-3 Experiment
    P.K. Mohanty et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)354
  6. Energy spectrum and composition measurements of cosmic rays from GRAPES-3 experiment
    F. Varsi et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)449
  7. A size and age dependence study of shower front curvature with GRAPES-3 array
    V.B. Jhansi et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)457
  8. Simulation of atmospheric pressure effects on particle densities measured by GRAPES-3
    M. Zuberi et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)502
  9. Correlation between cosmic ray intensity variations observed by the large acceptance GRAPES-3 muon telescope and interplanetary magnetic field
    H. Kojima et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)1151
  10. A fast and efficient technique to simulate the effects of geomagnetic storms recorded by GRAPES-3 in real-time
    M. Zuberi et al., 36th ICRC 2019, Proceedings of Science Pos(ICRC2019)1176
  11. GRAPES-3 experimental system
    A. Jain et al., 15th VCI 2019, Nuclear Instrumentation and Methods in Physics Research A 053,(2019)
  12. Observation of cosmic ray anisotropy with GRAPES-3 Experiment
    P.K. Mohanty et al., 26th ECRC 2018, Journal of Physics: Conference Series, Volume 1181, conference 1
  13. Effects of atmospheric electric field on muon intensity observed in GRAPES-3 experiment
    B. Hariharan et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)481
  14. CORSIKA modification for electric field simulations on pions, kaons and muons
    B. Hariharan et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)305
  15. Transient weakening of geomagnetic shield probed by GRAPES-3 experiment
    P.K. Mohanty et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)092
  16. Long-term correction of GRAPES-3 muon telescope efficiency
    P.K. Mohanty et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)357
  17. Diffusion of cosmic rays in heliosphere, observations from GRAPES-3
    K.P. Arunbabu et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)011
  18. Atmospheric temperature dependence of muon intensity measured by the GRAPES-3 experiment
    K.P. Arunbabu et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)304
  19. Extending the range of particle densities observed by GRAPES-3
    A. Chandra et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)479
  20. Dependence of the GRAPES-3 EAS trigger rate and particle density on atmospheric pressure and temperature
    M. Zuberi et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)302
  21. Precision measurement of arrival times in an EAS by GRAPES-3 experiment
    V.B. Jhansi et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)354
  22. Measuring the hourly gain of the scintillator detectors from EAS data
    V.B. Jhansi et al., 35th ICRC 2017, Proceedings of Science PoS(ICRC2017)356
  23. CORSIKA modification for rigidity dependent primary selection based on Geomagnetic cutoff rigidity for GRAPES-3 simulations
    B. Hariharan et al., 34th ICRC 2015, Proceedings of Science PoS(ICRC2015)448
  24. Energy spectrum of the primary cosmic rays in the range 10 GeV-10 TeV
    A. Chandra et al., 34th ICRC 2015, Proceedings of Science PoS(ICRC2015)235
  25. Measurements of solar diurnal ansiotropy with GRAPES-3 experiment
    P.K. Mohanty et al., 34th ICRC 2015, Proceedings of Science PoS(ICRC2015)042
  26. A new method for determining atmospheric pressure coefficient by using fast Fourier transform for muons in the GRAPES-3 experiment
    P.K. Mohanty et al., 34th ICRC 2015, Proceedings of Science PoS(ICRC2015)045

For downloading above articles please visit http://grapes-3.tifr.res.in or send an email request to webmaster or me


Coverage

  1. Most powerful electrical storm on record detected
    National Geographic
  2. Breakthrough towards Resolving Century Old Riddle of Deadly Thunderstorms by a Muon Telescope in India
    VIF India
  3. Ooty: Cosmic Ray Lab breaks new ground with ‘Muon’ telescope
    Deccan Chronicle
  4. DD Podhigai: Cosmic Ray Laboratory
    YouTube

Conferences & Workshops

  1. XXIV DAE-BRNS High Energy Physics Symposium 2020, NISER, Odisha, India (Virtual).
  2. Computer Interfaced Science Experiments, IUAC, India (Virtual).
  3. Advances in High Energy Physics, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India (Virtual).
  4. XXIX International Conference on Neutrino Physics and Astrophysics 2020, Fermilab, USA (Virtual).
  5. HTCondor week 2020, University of Wisconsin-Madison, USA (Virtual).
  6. National Science Day 2020 - Workshop on Space Science, IIT Kanpur, India.
  7. 1st Asian HTCondor workshop 2019, Mumbai, India.
  8. 36th International Cosmic Ray Conference 2019, Madison, WI, USA.
  9. 35th International Cosmic Ray Conference 2017, Busan, S. Korea.
  10. 11th Workshop & Winter school on AstroParticle Physics 2016, Ooty, India.
  11. 10th Workshop on AstroParticle Physics 2015, Darjeeling, India.
  12. 34th International Cosmic Ray Conference 2015, The Hague, Netherlands.
  13. 9th Workshop & Winter school on AstroParticle Physics 2014, Ooty, India.
  14. CORSIKA school 2014, Freudenstadt, Germany.
  15. MCNet Monte Carlo School 2013, Gottingen, Germany.
  16. TeV Particle Astrophysics 2012, Mumbai, India.
  17. 6th Workshop & Winterschool on AstroParticle Physics 2011, Darjeeling, India.
  18. 5th Winter school on AstroParticle Physics 2010, Ooty, India.

Various talks and presentations

  1. A detailed investigation of thunderstorm events recorded in GRAPES- 3 experiment (Virtual)
    XXIV DAE-BRNS High Energy Physics sym- posium, NISER, Odisha, India
  2. Study of High Energy Universe with GRAPES-3 (Webinar)
    Hindustan College of Engineering and Technology, Coimbatire, India
  3. Cosmic rays: Messengers of the Universe with GRAPES-3 (Webinar)
    Gobi Arts & Science College, Erode, India
  4. Webinar with Expert (Webinar)
    Mango Education, Coimbatore, India
  5. The Staggering Power of Thunderstorms
    National Science Day 2020 - Workshop on Space Science, IIT Kanpur, India.
  6. Basic lecture on forces of nature and cosmic rays
    For students of Vivekananda Memorial Matric School
  7. GRAPES-3 experiment
    For students of Coimbatore Institute of Technology, Coimbatore
  8. GRAPES-3 experiment
    For students of Parvathy arts and science college, Dindigul
  9. Introductory lecture on GRAPES-3 experiment
    For Tribal students outreach program
  10. Measurement of the electrical properties of a thundercloud through muon imaging by the GRAPES-3 experiment
    36th International Cosmic Ray Conference 2019, Madison, WI, USA
  11. Dependence of hadronic interaction models in atmospheric electric field simulations for GRAPES-3
    36th International Cosmic Ray Conference 2019, Madison, WI, USA
  12. Computing Facilities II
    DHEP Review Meeting 2019, TIFR, Mumbai, India
  13. Measurement of the electrical properties of a thundercloud through muon imaging by the GRAPES-3 experiment
    DHEP Review Meeting 2019, TIFR, Mumbai, India
  14. How to Build an Inexpensive, Low-Maintenance and Scalable Supercomputing Cluster?
    (Outstanding Technology: Approaches to High Performance Computing) DHEP Annual Meeting 2018, TIFR, Mumbai, India
  15. Measurement of electric potential in thunderstorm using GRAPES-3 muon telescope (poster)
    DHEP Annual Meeting 2018, TIFR, Mumbai, India
  16. GRAPES-3 Computer Cluster (poster)
    DHEP Annual Meeting 2018, TIFR, Mumbai, India
  17. GRAPES-3 Data Analysis Framework (poster)
    DHEP Annual Meeting 2018, TIFR, Mumbai, India
  18. Effects of atmospheric electric field on muon intensity observed in GRAPES-3 experiment
    35th International Cosmic Ray Conference 2017, Busan, S. Korea.
  19. CORSIKA modification for electric field simulations on pions, kaons and muons
    35th International Cosmic Ray Conference 2017, Busan, S. Korea.
  20. Conducted an experimental session on "Measurement of mean muon lifetime" to WAPP students
    11th Winter school on AstroParticle Physics 2016, Ooty, India
  21. Study of thunderstorm events using GRAPES-3 experiment
    11th Winter school on AstroParticle Physics 2016, Ooty, India
  22. Study of thunderstorm events using GRAPES-3 experiment
    11th Workshop on AstroParticle Physics 2016, Ooty, India
  23. Computing and Data analysis in GRAPES-3 Experiment
    Internship Program 2016, Students of NSS College of engineering, Palakad, India
  24. Effects of atmospheric electric field on muon intensity observed in GRAPES-3 (poster)
    DHEP Annual Meeting 2016, TIFR, Mumbai, India
  25. GRAPES-3 computer cluster (poster)
    DHEP Annual Meeting 2016, TIFR, Mumbai, India
  26. A new method to determine TDCZero (poster)
    DHEP Annual Meeting 2016, TIFR, Mumbai, India
  27. Simulation of tracking muon detector in GRAPES-3
    10th Workshop on AstroParticle Physics 2015, Darjeeling, India
  28. CORSIKA modification for rigidity dependent primary selection based on Geomagnetic cutoff rigidity for GRAPES-3 simulations
    34th International Cosmic Ray Conference 2015, The Hague, Netherlands.
  29. Energy spectrum of the primary cosmic rays in the range 10 GeV-10 TeV
    34th International Cosmic Ray Conference 2015, The Hague, Netherlands.
  30. Computing in CRL
    9th Workshop on AstroParticle Physics 2014, Ooty, India
  31. Conducted an experimental session on "Measurement of mean muon lifetime" to WAPP students
    9th Winter school on AstroParticle Physics 2014, Ooty, India
  32. Conducted an experimental session on "Monte Carlo simulations" to WAPP students
    6th Winter school on AstroParticle Physics 2011, Darjeeling, India

Contact Me

Office

Cosmic Ray Laboratory,
Raj Bhavan - TIFR,
Ooty,
Tamil Nadu - 643001.

Call Me

+91 (0423) 222 5060
+91 (0423) 244 2371

E-Mail Me

Use the below contact form or email me at
hariharan@crl.tifr.res.in or 89hariharan@gmail.com


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